A pain pump caused a seizure in a woman with brain metastases
Original title: Seizure after IDDS implantation - unrecognized intracranial hypertension associated with intracranial metastases: A case report.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This is a report on one patient, not a test of a new treatment.
The short version
One woman had a seizure after a pain pump was placed, because of pressure in her brain that doctors had not spotted.
What was studied. This is a report about one patient. She was a 66-year-old woman with rectal cancer that had spread. She had bad pain in her lower back and legs, so doctors placed a pump that sends pain medicine into the fluid around her spine.
What they found. She had seizure-like symptoms 19 hours after the surgery. She already had cancer spots in her brain, but checks before surgery showed no clear signs of high pressure in the head. A brain scan after the seizure showed several cancer spots, swelling around them, and air inside the head. Doctors stopped the pain medicine in the pump and gave her drugs to lower the pressure and stop the seizures. She woke up and had no more seizures. Her pain was well controlled after the pump was restarted at a lower rate. Her cancer kept getting worse. Her family chose to take her home on day 8 after surgery, and she died of cardiac arrest 3 days later.
What this means, and what it doesn't
What it could mean: If you have cancer that has spread to the brain and you are offered this kind of pain pump, a brain scan before surgery may be a smart step. The doctors here say usual signs of high pressure in the head can be missing. It may help to ask your care team about brain imaging and about how the pump is placed.
What it doesn't mean: This is one patient's story, not a study. It does not tell us how often this happens. It is not a new treatment, and it is not a cure. It does not mean pain pumps are unsafe for most people. One report cannot prove cause and effect, and care choices still depend on your own situation.
Source: PubMed, August 28, 2026 · Read the original
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